Techno-economic analysis of typical dryers

Development of a solar-assisted dryer and evaluation of energy requirement for the drying of onion

“…Solar dryers with normal collectors generally provide low-grade heat and, thus, are good for agricultural crop drying purposes as it meets the requirement of high airflow rate with small temperature rise. Sodha et al [1] shown that the dryers using conventional solar air heaters with lifespan of 10 or more years are economical when compared with those using wood, oil or electricity. In India, sliced onion is commercially dried in trays in a cabinet-type mechanical dryer or in a continuous belt dehydrator.…”

Techno-economic analysis of the Jordanian solar water heating system

“…In general, taking the concept of time value of money in consideration, then the annual cost (AC) of a system can be expressed as the following equation [15]:…”

“…The energy needed to secure for the daily hot water needs (EDHN) of an average family is approximated according to the following equation: [11], ADHP is estimated to 25 liter/person/day, and since we expect to heat water in the average from 15 to 55 v C then DT is also estimated to 40 v K, [15]. Hence, EDHN is evaluated to 7.967 kWh/day.…”

Techno-economic of solar drying systems with water based solar collectors in Malaysia: A review

“…SDS using flat plate solar collectors, which have at least a 10-year lifespan, are more efficient and economical than that using traditional method by burning fossil fuels or wood, as well as those that use electricity [22]. A simple framework for a comparison financial evaluation of solar drying versus open sun drying was developed by Purohit et al [23].…”