The energy saving mechanism and the potential of efficiency improvement for coal to synthetic/substitute natural gas and power plant with different schemes and CO2 capture is disclosed through exergy analysis, and the effects of key parameters on exergy losses and system performance are...

The broadly applicable equations for estimating learning rates of cost variables in energy systems with CO2 capture (CC) are formulated, in which the effect of overall plant efficiency upgrade on learning rates is reflected. Based on the equations, as a case study, we estimate the learning...

Recently, interest in chemical-looping combustion (CLC) has grown because it is a technique that could allow cost-effective carbon capture and storage. Recently, the chemical-looping process was also proposed for the production of hydrogen. Chemical-looping hydrogen (CLH) generation, which is a...

Full chain energy performance is applied to a hybrid combined cooling, heating and power (CCHP) system running with methanol and solar energy. Results show that the overall energy efficiencies of six different cases range from 40% to 50% in summer condition, and 38% to 47% in winter condition....

A novel compressed air drying method using pressurized liquid desiccant is proposed in this paper. The compressed air drying system is consisted of a compressed air module, a pressurized liquid desiccant dehumidifier, a liquid desiccant regenerator working in an atmospheric pressure, and other...

Phase change materials (PCMs) are used to enhance the thermal storage capacity of building walls. PCM incorporation into building walls poses several design challenges; a critical one being the integration method (e.g., micro- vs. macro-encapsulation) as well as the location of PCMs within the...

Solar collector/regenerator (C/R) using liquid desiccant combines solar photothermic transformation and regeneration of liquid desiccant together, effectively achieving the regeneration for solar energy-driven liquid desiccant cooling systems. In this paper a group of dimensionless heat and mass...

This work aims at optimizing life cycle performance of a hybrid combined cooling heating and power (CCHP) system incorporating with solar energy and natural gas. A basic natural gas CCHP system containing power generation unit, heat recovery system, hybrid cooling system and storage tank, is...

In this paper, we report the operational performance and energy conversion efficiency of a developed 15kW solar chemical receiver/reactor for hydrogen production. A concentrated solar heat of around 200–300°C was utilized to provide process heat to drive methanol steam reforming. A modified...

The contribution of mid-temperature solar thermal power to improve the performance of coal-fired power plant is analyzed in the present paper. In the solar aided coal-fired power plant, solar heat at300°C is used to replace the extracted steam from the steam turbine to heat the feed water. In...