Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Purdue University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 3481 - 3510 of 7936

Full-Text Articles in Entire DC Network

Winter Squash Variety Evaluation, John Strang, Chris Smigell, John Snyder, Pam Sigler Jan 2016

Winter Squash Variety Evaluation, John Strang, Chris Smigell, John Snyder, Pam Sigler

Midwest Vegetable Trial Reports

No abstract provided.


Midwest Triploid Watermelon Variety Trial In Southwest Indiana — 2015, Wenjing Guan, Dan Egel, Dennis Nowaskie Jan 2016

Midwest Triploid Watermelon Variety Trial In Southwest Indiana — 2015, Wenjing Guan, Dan Egel, Dennis Nowaskie

Midwest Vegetable Trial Reports

No abstract provided.


Purdue Mission To Mars: Recruiting High School Students Into A Polytechnic College, Matthew Turner, Joe Dues, Tim Cooley, Rustin Webster, Richard Kopp, Andrew Mccart, Dani Reynolds Jan 2016

Purdue Mission To Mars: Recruiting High School Students Into A Polytechnic College, Matthew Turner, Joe Dues, Tim Cooley, Rustin Webster, Richard Kopp, Andrew Mccart, Dani Reynolds

School of Engineering Technology Faculty Publications

This paper presents the development and implementation of an integrative half-day workshop experience for high school students that combines elements of four degree programs: Organizational Leadership, Electrical Engineering Technology, Mechanical Engineering Technology, and Computer Graphics Technology. During the workshop, students engage in active learning: Purdue New Albany is transformed into an aerospace design think tank and high school students are transformed into Polytechnic interns. The interns are then presented with a challenge: A new form of bacteria has possibly been identified on Mars and soil samples must be collected for analysis, however, the next shuttle launch is in 3 hours …


Midwest Cantaloupe Variety Trial In Southwest Indiana — 2015, Wenjing Guan, Dan Egel, Dennis Nowaskie Jan 2016

Midwest Cantaloupe Variety Trial In Southwest Indiana — 2015, Wenjing Guan, Dan Egel, Dennis Nowaskie

Midwest Vegetable Trial Reports

No abstract provided.


Seedless Watermelon Variety Trial For Kentucky, 2015, Shubin K. Saha, John Snyder, Chris Smigell, John Walsh Jan 2016

Seedless Watermelon Variety Trial For Kentucky, 2015, Shubin K. Saha, John Snyder, Chris Smigell, John Walsh

Midwest Vegetable Trial Reports

No abstract provided.


Population Health And Nurse Education – Time To Step-Up, Iain M. Atherton, Kathie Lasater, Elizabeth Richards, Launa Rae Mathews, Vicki Simpson, Richard G. Kyle Jan 2016

Population Health And Nurse Education – Time To Step-Up, Iain M. Atherton, Kathie Lasater, Elizabeth Richards, Launa Rae Mathews, Vicki Simpson, Richard G. Kyle

School of Nursing Faculty Publications

No abstract provided.


Differentiating Cyberbullies And Internet Trolls By Personality Characteristics And Self-Esteem, Kathryn C. Seigfried-Spellar Jan 2016

Differentiating Cyberbullies And Internet Trolls By Personality Characteristics And Self-Esteem, Kathryn C. Seigfried-Spellar

Computer Information Technology Faculty Publications

Cyberbullying and internet trolling are both forms of online aggression or cyberharassment; however. research has yet to assess the prevalence of these behaviors in relationship to one another. In addition, the current study was the first to investigate whether individual differences and self-esteeem discerned between self reported cyberbullies and/or internet trolls ( i.e. Never engaged in either, Cyberbully-only, Troll-Only, Both Cyberbully and Troll). Of 308 respondents solicited from Mechanical Turk, 70 engaged in cyberbullying behaviors, 20 engaged in onlt trolling behaviors, 129 self-reported both behaviors, and 89 self-reported neither behavior. Results yielded low self-esteem, low conscientiousness, and low internal moral …


Midwest Vegetable Trial Report For 2015, Elizabeth Maynard Jan 2016

Midwest Vegetable Trial Report For 2015, Elizabeth Maynard

Purdue Fruit and Vegetable Research Reports

This is a compilation of 19 research trial reports from six land-grant universities in the midwestern United States. Crops include bok choy, cantaloupe, cucumber, pepper, pumpkin, sweet corn, squash, tomato, and watermelon. Several crops were evaluated in high tunnels or hoophouses. Most trials evaluated different cultivars or varieties, including one investigating cantaloupe variety influence on cucumber beetle presence and incidence of bacterial wilt. Four reports addressed specific growing practices: the use of poly-coated urea to supply nitrogen to sweet corn, biochar use in a high tunnel bag culture system, use of cereal rye cover crop in butternut squash, and pollinizer …


Midwest Cantaloupe Variety Trial In Southwest Indiana — 2015, Wenjing Guan, Dan Egel, Dennis Nowaskie Jan 2016

Midwest Cantaloupe Variety Trial In Southwest Indiana — 2015, Wenjing Guan, Dan Egel, Dennis Nowaskie

Purdue Fruit and Vegetable Research Reports

This is a compilation of 21 research trial reports from four land-grant universities in the Midwestern United States. Crops include cantaloupe, pickling cucumber, pepper, potato, pumpkin, summer squash and zucchini, sweet corn, tomato, and watermelon. Somecrops were evaluated in high tunnels or hoophouses. Most trials evaluated different cultivars or varieties. One report addressed plant spacing for sweet corn and one addressed soil block for production of tomato seedlings. A list of vegetable seed sources and a list of other online sources of vegetable trial reports are also included.


Midwest Triploid Watermelon Variety Trial In Southwest Indiana — 2015, Wenjing Guan, Dan Egel, Dennis Nowaskie Jan 2016

Midwest Triploid Watermelon Variety Trial In Southwest Indiana — 2015, Wenjing Guan, Dan Egel, Dennis Nowaskie

Purdue Fruit and Vegetable Research Reports

This is a compilation of 21 research trial reports from four land-grant universities in the Midwestern United States. Crops include cantaloupe, pickling cucumber, pepper, potato, pumpkin, summer squash and zucchini, sweet corn, tomato, and watermelon. Somecrops were evaluated in high tunnels or hoophouses. Most trials evaluated different cultivars or varieties. One report addressed plant spacing for sweet corn and one addressed soil block for production of tomato seedlings. A list of vegetable seed sources and a list of other online sources of vegetable trial reports are also included.


Type One Protein Phosphatase 1 And Its Regulatory Protein Inhibitor 2 Negatively Regulate Aba Signaling, Hou Yueju, Yingfang Zhu, Pengcheng Wang, Yang Zhao, Shaojun Xie, Giorgia Batelli, Bangshing Wang, Chengguo Duan, Xingang Wang, Lu Xing, Mingguang Lei, Jun Yan, Xiaohong Zhu, Jian-Kang Zhu Jan 2016

Type One Protein Phosphatase 1 And Its Regulatory Protein Inhibitor 2 Negatively Regulate Aba Signaling, Hou Yueju, Yingfang Zhu, Pengcheng Wang, Yang Zhao, Shaojun Xie, Giorgia Batelli, Bangshing Wang, Chengguo Duan, Xingang Wang, Lu Xing, Mingguang Lei, Jun Yan, Xiaohong Zhu, Jian-Kang Zhu

Department of Horticulture & Landscape Architecture Faculty Publications

The phytohormone abscisic acid (ABA) regulates plant growth, development and responses to biotic and abiotic stresses. The core ABA signaling pathway consists of three major components: ABA receptor (PYR1/PYLs), type 2C Protein Phosphatase (PP2C) and SNF1-related protein kinase 2 (SnRK2). Nevertheless, the complexity of ABA signaling remains to be explored. To uncover new components of ABA signal transduction pathways, we performed a yeast two-hybrid screen for SnRK2-interacting proteins. We found that Type One Protein Phosphatase 1 (TOPP1) and its regulatory protein, At Inhibitor-2 (AtI-2), physically interact with SnRK2s and also with PYLs. TOPP1 inhibited the kinase activity of SnRK2.6, and …


Chloroplast Rna-Binding Protein Rbd1 Promotes Chilling Tolerance Through 23s Rrna Processing In Arabidopsis, Shuai Wang, Ge Bai, Shu Wang, Leiyun Yang, Fen Yang, Yi Wang, Jiankang Zhu, Jian Hua Jan 2016

Chloroplast Rna-Binding Protein Rbd1 Promotes Chilling Tolerance Through 23s Rrna Processing In Arabidopsis, Shuai Wang, Ge Bai, Shu Wang, Leiyun Yang, Fen Yang, Yi Wang, Jiankang Zhu, Jian Hua

Department of Horticulture & Landscape Architecture Faculty Publications

Plants have varying abilities to tolerate chilling (low but not freezing temperatures), and it is largely unknown how plants such as Arabidopsis thaliana achieve chilling tolerance. Here, we describe a genome-wide screen for genes important for chilling tolerance by their putative knockout mutants in Arabidopsis thaliana. Out of 11,000 T-DNA insertion mutant lines representing half of the genome, 54 lines associated with disruption of 49 genes had a drastic chilling sensitive phenotype. Sixteen of these genes encode proteins with chloroplast localization, suggesting a critical role of chloroplast function in chilling tolerance. Study of one of these proteins RBD1 with an …


Innovation Of A Regulatory Mechanism Modulating Semi-Determinate Stem Growth Through Artificial Selection In Soybean, Yufeng Liu, Dajian Zhang, Jieqing Ping, Shuai Li, Zhixiang Chen, Jianxin Ma Jan 2016

Innovation Of A Regulatory Mechanism Modulating Semi-Determinate Stem Growth Through Artificial Selection In Soybean, Yufeng Liu, Dajian Zhang, Jieqing Ping, Shuai Li, Zhixiang Chen, Jianxin Ma

Department of Agronomy Faculty Publications

It has been demonstrated that Terminal Flowering 1 (TFL1) in Arabidopsis and its functional orthologs in other plants specify indeterminate stem growth through their specific expression that represses floral identity genes in shoot apical meristems (SAMs), and that the loss-of-function mutations at these functional counterparts result in the transition of SAMs from the vegetative to reproductive state that is essential for initiation of terminal flowering and thus formation of determinate stems. However, little is known regarding how semi-determinate stems, which produce terminal racemes similar to those observed in determinate plants, are specified in any flowering plants. Here we …


Β-Aminopropionitrile-Induced Reduction In Enzymatic Crosslinking Causes In Vitro Changes In Collagen Morphology And Molecular Composition, Silvia P. Canelón, Joseph M. Wallace Jan 2016

Β-Aminopropionitrile-Induced Reduction In Enzymatic Crosslinking Causes In Vitro Changes In Collagen Morphology And Molecular Composition, Silvia P. Canelón, Joseph M. Wallace

Weldon School of Biomedical Engineering Graduate Student Publications

Type I collagen morphology can be characterized using fibril D-spacing, a metric which describes the periodicity of repeating bands of gap and overlap regions of collagen molecules arranged into collagen fibrils. This fibrillar structure is stabilized by enzymatic crosslinks initiated by lysyl oxidase (LOX), a step which can be disrupted using β-aminopropionitrile (BAPN). Murine in vivo studies have confirmed effects of BAPN on collagen nanostructure and the objective of this study was to evaluate the mechanism of these effects in vitro by measuring D-spacing, evaluating the ratio of mature to immature crosslinks, and quantifying gene expression of type I collagen …


Effect Of End Plates On Heat Transfer Of Plate Heat Exchanger, Shenghan Jin, Pega Hrnjak Jan 2016

Effect Of End Plates On Heat Transfer Of Plate Heat Exchanger, Shenghan Jin, Pega Hrnjak

International Refrigeration and Air Conditioning Conference

Steady-state heat transfer data for single-phase (water) in both frame-and-plate (FPHE) and brazed plate heat exchangers (BPHE) are presented with various number of chevron plates in U-type flow arrangement. Analysis of the experimental results indicates that the end plates, instead of being adiabatic, function as fins due to the contact with adjacent plates. The experimental data is used to validate a thermal conduction model in ANSYS, which indicates that the end plates fin efficiency is a function of fluid convective heat transfer coefficient and conductive thermal resistance. In the frame-and-plate heat exchanger, the pressing force of the frame may affect …


A Method To Combine Local Heat Transfer And Flow Visualization Of Flow Boiling In Frame-And-Plate Heat Exchanger, Shenghan Jin, Pega Hrnjak Jan 2016

A Method To Combine Local Heat Transfer And Flow Visualization Of Flow Boiling In Frame-And-Plate Heat Exchanger, Shenghan Jin, Pega Hrnjak

International Refrigeration and Air Conditioning Conference

This paper presents the development of a novel method to combine measurement of local heat transfer coefficient and flow visualization in frame-and-plate heat exchanger (FPHE). A special plate was instrumented using two original chevron plates and clay as thermal infills. Thermocouples were deployed on the inner surfaces of the two plates. With the known thickness and thermal conductivity of the clay, the instrumented plate functions as a heat flux sensor. After calibration, this plate was installed to measure fluid heat transfer from one side, while leaving visual access from the other. Preliminary results of water-water single-phase heat transfer and R245fa-water …


Numerical Simulation Of The 3d Transient Temperature Evolution Inside A Domestic Single Zone Wine Storage Cabinet With Forced Air Circulation, Johann Hopfgartner, Martin Heimel, Stefan Posch, Erwin Berger, Raimund Almbauer, Stephan Schlemmer Jan 2016

Numerical Simulation Of The 3d Transient Temperature Evolution Inside A Domestic Single Zone Wine Storage Cabinet With Forced Air Circulation, Johann Hopfgartner, Martin Heimel, Stefan Posch, Erwin Berger, Raimund Almbauer, Stephan Schlemmer

International Refrigeration and Air Conditioning Conference

This work is carried out in order to investigate the air flow and temperature stratification in the compartment of a single zone wine storage cabinet with forced ventilation for domestic use. The appliance used in this work has a total gross capacity of approximately 135 liters. A single zone wine cooler should achieve evenly distributed temperature for all bottles inside the appliance. To analyze the temperature distribution, a numerical simulation of the air flow and the temperature field can be very helpful. The numerical simulations are carried out applying commercial CFD (Computational Fluid Dynamic) software using the finite volume method. …


Reduction Of Energy Consumption In Air-Conditioning Systems Employing Direct Evaporative Pre-Cooling Of Condenser Air, Theodore Aganachi Ndukaife, A.G Agwu Nnanna Jan 2016

Reduction Of Energy Consumption In Air-Conditioning Systems Employing Direct Evaporative Pre-Cooling Of Condenser Air, Theodore Aganachi Ndukaife, A.G Agwu Nnanna

International Refrigeration and Air Conditioning Conference

This paper presents an experimental investigation of the application of direct evaporative cooling to reduce energy consumption in a residential sized split Air-Conditioning system. Direct evaporative cooling is employed at the air-cooled condenser of a split air-conditioning system to pre-cool the ambient air flowing over the condenser coils. Different ambient conditions of air were simulated using a heater to mimic typical high temperature environments. Rigid cellulose pads with thickness ranging from 2-6inches (5.1cm-15.24cm) served as the heat exchange medium for air-water interaction, and were tested to determine the influence of the pad thickness in pre-cooling the ambient air before it …


Vegetative And Adaptive Traits Predict Different Outcomes For Restoration Using Hybrids, Philip A. Crystal, Nathanael I. Lichti, Keith E. Woeste, Douglass F. Jacobs Jan 2016

Vegetative And Adaptive Traits Predict Different Outcomes For Restoration Using Hybrids, Philip A. Crystal, Nathanael I. Lichti, Keith E. Woeste, Douglass F. Jacobs

Department of Forestry & Natural Resources Faculty Publications

Hybridization has been implicated as a driver of speciation, extinction, and invasiveness, but can also provide resistant breeding stock following epidemics. However, evaluating the appropriateness of hybrids for use in restoration programs is difficult. Past the F1 generation, the proportion of a progenitor’s genome can vary widely, as can the combinations of parental genomes. Detailed genetic analysis can reveal this information, but cannot expose phenotypic alterations due to heterosis, transgressive traits, or changes in metabolism or development. In addition, because evolution is often driven by extreme individuals, decisions based on phenotypic averages of hybrid classes may have unintended results. We …


Cantaloupe Variety Trial For Kentucky, 2015, Shubin K. Saha, John Snyder, Chris Smigell, John Walsh Jan 2016

Cantaloupe Variety Trial For Kentucky, 2015, Shubin K. Saha, John Snyder, Chris Smigell, John Walsh

Midwest Vegetable Trial Reports

No abstract provided.


Numerical Modelling Of Heat And Mass Transfer Processes In Chinese Cabbage Cold Storage Chamber, Miroslawa Kolodziejczyk, Dariusz Butrymowicz, Kamil Smierciew, Jerzy Gagan Jan 2016

Numerical Modelling Of Heat And Mass Transfer Processes In Chinese Cabbage Cold Storage Chamber, Miroslawa Kolodziejczyk, Dariusz Butrymowicz, Kamil Smierciew, Jerzy Gagan

International Refrigeration and Air Conditioning Conference

During storage of fruits and vegetables in cold stores, quantitative as well as qualitative losses may occur due to non-uniformity of storage conditions. The macroscopic energy balance, mainly used to design storage chambers, cannot predict where storage conditions are going to induce the loss of commodity. The numerical modelling of the cold storage can be applied as an effective tool to investigate the  homogeneity of the treatments to which the produce is subjected. The most important factors affected the uniformity of temperature and relative humidity, and consequently, the quality of the commodity, are velocity, temperature and humidity of air …


Assessing Defrosting Performance On Hydrophilic, Hydrophobic, And Micro-Patterned Heat Transfer Surfaces, Nickolas C. Schmiesing, Andrew D. Sommers Jan 2016

Assessing Defrosting Performance On Hydrophilic, Hydrophobic, And Micro-Patterned Heat Transfer Surfaces, Nickolas C. Schmiesing, Andrew D. Sommers

International Refrigeration and Air Conditioning Conference

In this work, differences in drainage rates and defrosting effectiveness were explored for surfaces of differing wettability. Both patterned and non-patterned surfaces were explored. To date, six surfaces have been examined— an uncoated, untreated aluminum plate (Sample 1), an identical plate treated with a hydrophilic coating (Sample 2), a plate containing evenly-spaced micro-channels with no surface coating (Sample 3), a plate containing evenly-spaced micro-channels with a hydrophobic coating (Sample 4), and a surface containing a microstructural roughness gradient both with and without a hydrophobic surface coating (Samples 5 and 6). Cyclical tests containing frosting periods and defrosting periods were conducted …


A Preliminary Study On Innovative Absorption Systems That Utilize Low-Temperature Geothermal Energy For Air-Conditioning Buildings, Zhiyao Yang, Xiaobing Liu, Kyle R. Gluesenkamp, Ayyoub M. Momen Jan 2016

A Preliminary Study On Innovative Absorption Systems That Utilize Low-Temperature Geothermal Energy For Air-Conditioning Buildings, Zhiyao Yang, Xiaobing Liu, Kyle R. Gluesenkamp, Ayyoub M. Momen

International Refrigeration and Air Conditioning Conference

Air conditioning (A/C) systems driven by renewable energy have been studied extensively during the past decade as promising alternatives to conventional electricity-driven vapor compression A/C to alleviate stress on the grid as well as reduce CO2 emissions. Among the possible renewable energy sources to drive A/C systems, low-temperature geothermal heat ( < 150°C/300°F) is quite underdeveloped despite its abundance in the United States and the unique advantage of steady output regardless of the weather compared to other renewable energy sources. A major barrier to wider utilization is the typically long distances between geothermal sources and potential end uses. In order to overcome this barrier, an innovative two-step geothermal absorption (TSGA) system was studied. With this system, the low-temperature geothermal energy is stored and transported at ambient temperature with an energy density of 360 kJ of cooling energy per kg of shipped LiBr/H2O solution (about three times higher than hot water for typical space heating applications). Key design parameters of a 900 ton TSGA chiller have been determined based on computer simulations with ORNL’s SorpSim software. A case study for applying the TSGA system at a large office building in Houston, TX indicates that, for a 10-mile distance from the geothermal site to the building, the simple payback of the TSGA system is 11 years compared with a conventional electric-driven chiller. To further improve the density of the transported energy, thereby reducing transportation cost and improving payback, a new system using 3-phase-sorption technology is proposed. In this system crystallized salt solution is used to boost the transported energy density. A preliminary study of this new system shows that the enhanced energy density has potential to significantly improve payback.


Statistical Analysis Of The Effectiveness Of Seawalls And Coastal Forests In Mitigating Tsunami Impacts In Iwate And Miyagi Prefectures, Roshanak Nateghi, Jeremy D. Bricker, Seth D. Guikema, Akane Bessho Jan 2016

Statistical Analysis Of The Effectiveness Of Seawalls And Coastal Forests In Mitigating Tsunami Impacts In Iwate And Miyagi Prefectures, Roshanak Nateghi, Jeremy D. Bricker, Seth D. Guikema, Akane Bessho

School of Industrial Engineering Faculty Publications

The Pacific coast of the Tohoku region of Japan experiences repeated tsunamis, with the most recent events having occurred in 1896, 1933, 1960, and 2011. These events have caused large loss of life and damage throughout the coastal region. There is uncertainty about the degree to which seawalls reduce deaths and building damage during tsunamis in Japan. On the one hand they provide physical protection against tsunamis as long as they are not overtopped and do not fail. On the other hand, the presence of a seawall may induce a false sense of security, encouraging additional development behind the seawall …


Top Universities, Top Libraries: Do Research Services In Academic Libraries Contribute To University Output?, Viviana Fernández-Marcial, Luis Miguel Costa, Llarina González-Solar Jan 2016

Top Universities, Top Libraries: Do Research Services In Academic Libraries Contribute To University Output?, Viviana Fernández-Marcial, Luis Miguel Costa, Llarina González-Solar

Proceedings of the IATUL Conferences

University context is nowadays mostly characterized by the implementation of competitiveness and cost-effectiveness criteria. There are two main characteristics of the new management model: a new relevancy to the university funding and the predominance of the research criteria as excellence indicator. Evidence of the growing role of research in universities are the parameters to rank the excellence of higher education institutions, such as ARWU (Academic Ranking of World Universities) of the University of Shangai, SIR (SCImago Institutions Rankings) or the THE (Times Higher Education World University Rankings). The research orientation also imposes to the academic library, with the growing implementation …


Unique Behavioral And Neurochemical Effects Induced By Repeated Adolescent Consumption Of Caffeine-Mixed Alcohol In C57bl/6 Mice., Meridith T. Robins, Julie Lu, Richard M. Van Rijn Jan 2016

Unique Behavioral And Neurochemical Effects Induced By Repeated Adolescent Consumption Of Caffeine-Mixed Alcohol In C57bl/6 Mice., Meridith T. Robins, Julie Lu, Richard M. Van Rijn

Borch Department of Medicinal Chemistry and Molecular Pharmacology Faculty Publications

The number of highly caffeinated products has increased dramatically in the past few years. Among these products, highly caffeinated energy drinks are the most heavily advertised and purchased, which has resulted in increased incidences of co-consumption of energy drinks with alcohol. Despite the growing number of adolescents and young adults reporting caffeine-mixed alcohol use, knowledge of the potential consequences associated with co-consumption has been limited to survey-based results and in-laboratory human behavioral testing. Here, we investigate the effect of repeated adolescent (post-natal days P35-61) exposure to caffeine-mixed alcohol in C57BL/6 mice on common drug-related behaviors such as locomotor sensitivity, drug …


Distributed Extremum Seeking Control For A Variable Refrigerant Flow System, Yang Zhu, Yaoyu Li, Liujia Dong, Timothy I. Salsbury, John M. House Jan 2016

Distributed Extremum Seeking Control For A Variable Refrigerant Flow System, Yang Zhu, Yaoyu Li, Liujia Dong, Timothy I. Salsbury, John M. House

International Refrigeration and Air Conditioning Conference

The variable refrigerant flow (VRF) technology has facilitated the development of multi-split ductless air conditioning systems, in which multiple indoor units (IDU) are used to regulate the refrigerant flow to achieve individualized zoning control. Model based control for VRF system demands for more modeling efforts in part due to diverse configuration, as well as changes in load and ambient conditions. As a model-free control strategy, Extremum Seeking Control (ESC) has been investigated for VRF systems. Dong et al. (2015) applied the standard centralized ESC scheme to a VRF system that consists of one outdoor unit (ODU) and four IDU’s. Simulation …


Harmonization Of Life Cycle Climate Performance (Lccp) Methodology, Sarah Troch, Hoseong Lee, Yunho Hwang, Reinhard Radermacher Jan 2016

Harmonization Of Life Cycle Climate Performance (Lccp) Methodology, Sarah Troch, Hoseong Lee, Yunho Hwang, Reinhard Radermacher

International Refrigeration and Air Conditioning Conference

Life cycle climate performance (LCCP) is an evaluation method by which heating, ventilation, air conditioning and refrigeration (HVAC&R) systems can be evaluated for the global warming impact over the course of their complete life cycle. LCCP is more inclusive than previous metrics such as total equivalent warming impact (TEWI). It is calculated as the sum of direct and indirect emissions generated over the lifetime of the system “from cradle to grave”. Direct emissions include all effects from the release of refrigerants into the atmosphere during the lifetime of the system. This includes annual leakage and losses during the disposal of …


Thermoelectric Multi-Utility Water Heater Cum Air-Conditioner, Milind Vishwanath Rane, Dinesh B Uphade, Adittya M Rane Jan 2016

Thermoelectric Multi-Utility Water Heater Cum Air-Conditioner, Milind Vishwanath Rane, Dinesh B Uphade, Adittya M Rane

International Refrigeration and Air Conditioning Conference

A novel Thermoelectric Multi-Utility Water Heater, TE_MUWH, with water heating as primary utility and air-conditioning as bonus utility is presented. This is intended to serve the residential market. In India 2 to 3 kW electric instant water heaters are typically deployed in residences and consume ~3 kWh/day of electrical power. Their use contributes significantly to the peaking demand from residential buildings.  Patented TE_MUWH is being developed as a modular scalable unit. It is expected to reduce the electric demand and energy used for residential water heating applications by over 50%.  It has no moving parts and is expected …


Design And Performance Of Thermal Energy Storage Module Using High Thermal Conductivity Phase Change Composite Material, Siddique Khateeb Razack, Yoram Shabtay, Mukund Bhaskar, Yoram Shabtay, Hal Stilman, Said Al-Hallaj Jan 2016

Design And Performance Of Thermal Energy Storage Module Using High Thermal Conductivity Phase Change Composite Material, Siddique Khateeb Razack, Yoram Shabtay, Mukund Bhaskar, Yoram Shabtay, Hal Stilman, Said Al-Hallaj

International Refrigeration and Air Conditioning Conference

HVAC (Heating, Ventilation and Cooling) accounts for approximately 15-30% of a commercial building’s electricity cost and about 20-40% of electricity consumption. Electricity costs charged by the utilities companies for commercial building customers includes consumption charges ($/kWh) and demand charges ($/kW) depending on the time of use (TOU) charges. Thus, there is great interest to reduce the electricity consumption charges and demand charges by using new energy efficient technologies and products. One such product is a thermal energy storage (TES) system using a phase change material (PCM) to offset the cooling costs associated with air-conditioning systems by reducing the electricity consumption …