The role of evaporative cooling in the concept of the smart city. Towards nearly zero-energy buildings

The successive and persistent heat waves that blighted spain last summer broke new records in electricity demand. specifically on 21 july 2016, peak electrical power demand reached the highest figure of the last five years during the summer season, with 40,192 mw. the widespread use of air conditioning was the main “culprit” however the demand for industrial cooling should not be underestimated.

Even before the major heat waves hit, the electricity consumption of large and medium companies last june had increased by 1.5% compared to the same month last year, according to data from the ire, the power grid index. in the past twelve months, the electricity consumption of these companies was up 2.2% on the same period last year. by sector, industrial consumption rose by 3.6% and services by 1.6%.

 

Compared to june 2014, of the five activities with the greatest electricity consumption, metallurgy demand grew by 2.5%; the chemical industry was down 1.9%; the manufacturing of other non-metallic mineral products increased by 6.6%; the food industry rose by 0.8%; and paper dropped by 17.2%. similarly, the activities that most contributed to the growth in consumption of large companies were metallurgy with an increase of 2.5%; other non-metallic mineral product manufacturing (6.6%); water collection, treatment and distribution (13%); motor, trailer and semi-trailer vehicle manufacturing (7.5%); and rubber and plastics manufacturing (3.8%). Read more…

Manuel Lamúa
Technical Advisor at AEFYT, the Spanish Association for Refrigeration Technology

Article published in: FuturENERGY January-February 2017