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Energy efficiency of membrane distillation: Simplified analysis, heat recovery, and the use of waste-heat

open access: yesEnvironment International, 2020
Membrane distillation (MD) is a thermal desalination process that is advantageous due to its ability to harness low-grade waste heat to separate highly saline feedstock. However, like any thermal desalination process, the energy efficiency depends on the
Kofi S.S. Christie   +2 more
doaj   +3 more sources

Heat use efficiency of winter crops in Haryana

open access: yesJournal of Agrometeorology, 1999
V.U.M. RAO, DIWAN SINGH, RAJ SINGH
doaj   +2 more sources

Thermal and Optical Response of Faba Bean (Vicia faba L.) to Summer Planting Date in Mazandaran Region [PDF]

open access: yesبوم شناسی کشاورزی, 2023
Introduction Secondary or double cropping not only increases production per unit area but also makes optimal use of other production resources. Faba bean responds to and changes its environment by altering on-site soil fertility, microclimate, and co ...
Ramazan Sarparast
doaj   +1 more source

Leaf Color Chart (LCC)-Based Precision Nitrogen Management for Assessing Phenology, Agrometeorological Indices and Sustainable Yield of Hybrid Maize Genotypes under Temperate Climate

open access: yesAgronomy, 2022
Excessive nitrogenous fertilization in years resulted in larger nitrogen and profit losses. This problem can be reduced by using need-based and time-specific nitrogen management.
Suhail Fayaz   +10 more
doaj   +1 more source

Yield and Resource Utilization Efficiency Gap in Early Maturing Japonica Rice Cultivars under Different Management Strategies—A Different Location Investigation

open access: yesAgriculture, 2022
High input costs and poor management options have resulted in a large rice yield gap. Thus, there is a need to reduce production costs and improve resource-use efficiency by using new cultivation techniques at different locations.
Yandong Lv   +8 more
doaj   +1 more source

Rankine cycle efficiency gain using thermoelectric heat pumps [PDF]

open access: yesApplied Energy, 2015
The Rankine cycle remains the dominant method of thermal plant electricity generation in the world today. The cycle was described over 150 years ago and significant performance advances continue to be realised. On-going metallurgy research has enabled the operating pressure and temperature of the boiler and turbine to be increased, thereby improving ...
Siviter, J., Montecucco, A., Knox, A.R.
openaire   +1 more source

Thermodynamic Efficiency of Heat Pump Heating Scheme Using Ground and Sewage Heat [PDF]

open access: yesResearch Bulletin of the National Technical University of Ukraine "Kyiv Politechnic Institute", 2018
Background. Currently, the development and research of thermodynamic or energy efficiency of combined heat pump heat supply systems with the use of several low-temperature sources of energy becomes relevant. Objective. The aim of the paper is to determine the dependence of the relative productivity of the vertical ground heat exchanger on the hot ...
Mykhailo K. Bezrodny   +2 more
openaire   +1 more source

Influence of seedling age on growth, productivity and heat use efficiency of rice genotypes in North West India

open access: yesJournal of Agrometeorology, 2021
An experiment was conducted at Punjab Agricultural University, Ludhiana, India during kharif 2017 and 2018 to determine the effect of seedling age on growth, phenology and thermal energy utilization by different rice genotypes.
BUTA SINGH DHILLON   +3 more
doaj   +1 more source

Economic Analysis of Two Heat Pumps to Recover Heat from Circulating Water [PDF]

open access: yesE3S Web of Conferences, 2022
The use of heat pump to recover the condensing heat of the unit can realize the cascade utilization of energy, improve the utilization efficiency of energy, not only can effectively increase the heating capacity of the unit, but also can improve the use ...
Zhang Hu, Lao Jinxu
doaj   +1 more source

Use of Nanostructured Coating to Improve Heat Exchanger Efficiency [PDF]

open access: yes, 2019
This work investigates the potential of surface nano-coatings on the heat transfer surface of heat exchangers, in order to improve their overall efficiency in terms of pressure drop and heat power exchanged. The work started from the consideration that, due to the increasingly strict international standards, the machines will be provided with optimized
Bonanno, Antonino   +2 more
openaire   +4 more sources

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