Pre-Feasibility Study - Technical Anlysis Kazakhistan 2018-03-16 total1.2(Fort Merlice)(1)

5.1.1 Nominal heating requirements
The heating demands of a greenhouse are determined by its configuration and type. In this Technical Analysis,
we provide a quantification of the energy requirements for the greenhouse configuration being considered for
your location (KUBO Contract OW 4444).
The energy calculations assume:
• A glass roof and wall cover
• A single energy-saving screen
• A heat demand based on Delta-T and including dehumidification and activation of the crop
• A Natural Gas energy conversion efficiency equal to 90% of that of the Netherlands: 28.49 MJ/m 3
o Based on our prior experience in Kazakhstan (i.e. KZ Greenhouse)
Ultra-Clima ® Greenhouse with lights
The energy requirement of the considered Ultra-Clima® greenhouse for heating (only) in Mega Joule per square
meter [MJ/m 2 ] was estimated to be: 1319.8 MJ/m 2 . The results from the calculations have been visualized in
Figures 5 and 6. Figure 5 presents the energy requirements for heating the greenhouse in MJ/m 2 for each
month of the year, with a breakdown between the various sources of heat to the greenhouse environment (i.e.
Lights, Pipe rail, or AHU). Figure 6 presents the energy sources for heating the greenhouse in MJ/m 2 for each
month of the year, with a breakdown between the primary sources of heat (Boiler or Cogen) consuming natural
gas.
Figure 5: Ultra Clima® heating energy requirements
• AHU 675,4 MJ/m 2
• Light heat 456,9 MJ/m 2
• Pipe rail: 189,4 MJ/m 2
• Total: 1319,8 MJ/m 2
Figure 6: Ultra Clima® heating energy input
• Boiler: 13,9 m 3 /m 2
• Cogen: 88,8 m 3 /m 2
• Total: 96,8 m 3 /m 2
Date: 16 March 2018
Technical Analysis
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