ECONOMIC EVALUATION OF THE SYSTEM FOR VOCs RECOVERY DRIVEN BY SOLAR ENERGY

A novel integrated condensation and adsorption system for VOCs recovery was developed，based on DC power supply of both photovoltaic generation and battery，and the economic benefit of the system was analyzed． The recovery system could save 2. 307 × 105 yuan in electric charge in the service life，compared with the conventional system driven by AC electricity． But the static payback period was 6. 1 years，which was longer than the conventional system，owing to the higher investment cost of the photovoltaic power generation system． If the novel system was put into mass production，the payback period could be reduced to 3. 01 years，which was shorter than the conventional system．