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Passive energy recovery from natural ventilation air streams

Hughes, Ben Richard; Chaudhry, Hassam Nasarullah; … - In: Applied Energy 113 (2014) C, pp. 127-140

Increasing levels of urbanisation and indoor air quality have led to enhanced research and development of sustainable technologies in buildings. This study investigated natural ventilation streams typically found in domestic buildings and used heat pipe technology to recover the energy from...

Persistent link: https://www.econbiz.de/10011040670

An active cooling system for photovoltaic modules

Teo, H.G.; Lee, P.S.; Hawlader, M.N.A. - In: Applied Energy 90 (2012) 1, pp. 309-315

The electrical efficiency of photovoltaic (PV) cell is adversely affected by the significant increase of cell operating temperature during absorption of solar radiation. A hybrid photovoltaic/thermal (PV/T) solar system was designed, fabricated and experimentally investigated in this work. To...

Persistent link: https://www.econbiz.de/10010576310

New highly efficient regeneration process for thermochemical energy storage

Mette, Barbara; Kerskes, Henner; Drück, Harald; … - In: Applied Energy 109 (2013) C, pp. 352-359

sorption process. The new regeneration strategy allows regeneration of the storage material at significantly lower temperatures …

Persistent link: https://www.econbiz.de/10011040384

Development of a new clay supported polyethylenimine composite for CO2 capture

Wang, Weilong; Xiao, Jing; Wei, Xiaolan; Ding, Jing; … - In: Applied Energy 113 (2014) C, pp. 334-341

. At the optimal PEI loading of 50 wt% on the Mon_HCl_6M support, the CO2 sorption capacity reached 112mg CO2/g-sorbent at …M sorbent showed a good regenerability for 10 sorption–desorption cycles tested and a good thermal stability in the … temperature range of CO2 sorption (75°C) and desorption (100°C). …

Persistent link: https://www.econbiz.de/10011040594

Experimental study on the hydrogen charge and discharge rates of metal hydride tanks using heat pipes to enhance heat transfer

Chung, C.A.; Yang, Su-Wen; Yang, Chien-Yuh; Hsu, Che-Weu; … - In: Applied Energy 103 (2013) C, pp. 581-587

Heat transfer is a critical factor affecting the performance of metal hydrogen storage tanks. Many studies have proposed inner tubular heat exchangers for increasing the heat transfer rate between the metal powders and the exterior environment of the tanks. However, connecting cooling and...

Persistent link: https://www.econbiz.de/10010603020

Climate responsive behaviour of heat pipe technology for enhanced passive airside cooling

Chaudhry, Hassam Nasarullah; Hughes, Ben Richard - In: Applied Energy 136 (2014) C, pp. 32-42

A detailed investigation into determining the passive airside cooling capability of heat pipes in response to gradually varying external temperatures was carried out. The city of Doha, Qatar was taken as the location of case-study and the climatic data for June 21st, 2012 was incorporated in the...

Persistent link: https://www.econbiz.de/10011076353

Heat recovery opportunities in UK industry

Hammond, G.P.; Norman, J.B. - In: Applied Energy 116 (2014) C, pp. 387-397

A database of the heat demand, and surplus heat available, at United Kingdom industrial sites involved in the European Union Emissions Trading System, was used to estimate the technical potential of various heat recovery technologies. The options considered were recovery for use on-site, using...

Persistent link: https://www.econbiz.de/10010737707

Proton exchange membrane fuel cells for electrical power generation on-board commercial airplanes

Pratt, Joseph W.; Klebanoff, Leonard E.; Munoz-Ramos, Karina - In: Applied Energy 101 (2013) C, pp. 776-796

Deployed on a commercial airplane, proton exchange membrane (PEM) fuel cells may offer emissions reductions, thermal efficiency gains, and enable locating the power near the point of use. This work seeks to understand whether on-board fuel cell systems are technically feasible, and, if so, if...

Persistent link: https://www.econbiz.de/10010594051

Modeling of reciprocating internal combustion engines for power generation and heat recovery

Yun, Kyung Tae; Cho, Heejin; Luck, Rogelio; Mago, Pedro J. - In: Applied Energy 102 (2013) C, pp. 327-335

This paper presents a power generation and heat recovery model for reciprocating internal combustion engines (ICEs). The purpose of the proposed model is to provide realistic estimates of performance/efficiency maps for both electrical power output and useful thermal output for various...

Persistent link: https://www.econbiz.de/10010602980

Identification of the influence of fouling on the heat recovery in a network of shell and tube heat exchangers

Markowski, Mariusz; Trafczynski, Marian; Urbaniec, Krzysztof - In: Applied Energy 102 (2013) C, pp. 755-764

The aim of this work is to elaborate a method of identification of the influence of fouling on the heat recovery in a heat exchanger network (HEN). The method is based on mathematical models enabling the interpretation of industrial measurements of operating parameters of the HEN. Details of the...

Persistent link: https://www.econbiz.de/10010603012