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1. A high efficient combined multi-effect evaporation–absorption heat pump and vapor-compression refrigeration part 1: Energy and economic modeling and analysis

Author:
Janghorban Esfahani, Iman; Kang, Yong Tae; Yoo, ChangKyoo
Source:
Energy 2014 v.75 pp. 312-326
ISSN:
0360-5442
Subject:
cooling; cost analysis; electric power; evaporation; exergy; freshwater; fuels; heat; heat pumps; refrigeration; temperature
Abstract:
... A novel combined system that combines a MEE–ABHP (multi-effect evaporation–absorption heat pump) with a VCR (vapor-compression refrigeration) cycle is proposed to simultaneously generate cooling and fresh water. In the combined system, the condenser of the VCR system is replaced by the MEE–ABHP system, where a portion of the fresh water produced in the last effect of the MEE (multi-effect evaporat ...
DOI:
10.1016/j.energy.2014.07.081

2. Feasibility study of a combined Ocean Thermal Energy Conversion method in South Korea

Author:
Jung, Hoon; Hwang, Jungho
Source:
Energy 2014 v.75 pp. 443-452
ISSN:
0360-5442
Subject:
electric power; energy conversion; feasibility studies; heat; power plants; steam; summer; surface water; temperature; South Korea
Abstract:
... Considering the geographical position of South Korea, the concept of C-OTEC (Combined Ocean Thermal Energy Conversion) is thought to be feasible. C-OTEC uses the latent heat of the steam exhausted into the condenser of a power plant as a heat source, in contrast to the conventional OTEC cycle, which is based on warm surface water. More specifically, the C-OTEC heat source can always be maintained ...
DOI:
10.1016/j.energy.2014.07.096

3. Integration of industrial solar and gaseous waste heat into heat recovery loops using constant and variable temperature storage

Author:
Walmsley, Timothy G.; Walmsley, Michael R.W.; Atkins, Martin J.; Neale, James R.
Source:
Energy 2014 v.75 pp. 53-67
ISSN:
0360-5442
Subject:
case studies; cold storage; cost effectiveness; heat; infrastructure; renewable energy sources; temperature; wastes
Abstract:
... Solar is a renewable energy that can be used to provide process heat to industrial sites but require thermal storage. HRLs (heat recovery loops) are an indirect method for transferring heat from one process to another using an intermediate fluid. With HRL's thermal storage is also necessary to effectively meet the stop/start time dependent nature of the multiple source and sink streams. Combining ...
DOI:
10.1016/j.energy.2014.01.103

4. Strategic techno-economic assessment of heat network options for distributed energy systems in the UK

Author:
Ahmed, Asim; Mancarella, Pierluigi
Source:
Energy 2014 v.75 pp. 182-193
ISSN:
0360-5442
Subject:
capital; case studies; energy; heat; models; pipes; rural areas; temperature; United Kingdom
Abstract:
... Distributed energy systems facilitated by heat networks are rising in the UK as a viable option to decarbonise the heating sector, particularly at a community level (up to several MW). However, in this respect there is lack of suitable modelling tools and studies to assess the techno-economic performance of heat network options in different areas at a strategic level. Therefore, this paper present ...
DOI:
10.1016/j.energy.2014.07.011

5. Heat transport enhancement of thermal energy storage material using graphene/ceramic composites

Author:
Zhou, Mi; Bi, Hui; Lin, Tianquan; Lü, Xujie; Wan, Dongyun; Huang, Fuqiang; Lin, Jianhua
Source:
Carbon 2014 v.75 pp. 314-321
ISSN:
0008-6223
Subject:
aluminum oxide; catalysts; ceramics; foams; graphene; heat; latent heat; stearic acid; temperature; thermal conductivity; thermal energy; vapors; wettability
Abstract:
... Graphene/ceramic composites are proposed by directly depositing graphene on the insulating Al2O3 particles by chemical vapor deposition without any metal catalysts. Carbothermic reduction occurring at the Al2O3 surface is vital during the initial stage of graphene nucleation and the graphene sheet can connect with neighboring sheets to completely cover Al2O3 particles. The quality and layer number ...
DOI:
10.1016/j.carbon.2014.04.009