Module 5

These problems deal with your final module, which will be the design of a greenhouse of your choice.  This will allow you to get some of the calculations out of the way before April 29^th. If your greenhouse is to be located in a different climate, make sure your calculations reflect the location.  http://www.jaderloon.com is one place to get sample prices.

1. Write a short description of your proposed greenhouse design. In no more than 250 words mention the crop produced, size, location, type of construction, type of heating system and type of cooling system.

2. Heating System for your final Problem Set.  Using the methods you learned earlier determine what the heat loss is for your greenhouse.  Remember to indicate what the minimum outside temperature will be that your heating system will be designed to handle.  Determining this value will also require that you choose the size and covering of your greenhouse or greenhouse(s) at this point.  Additionally, you will need to choose the framing material.  Based on the heat loss choose an appropriate heating system.  This can be any type of heating system covered in your text, but you will need to justify your choice.  Calculate the cost of your heating system (you can use on-line catalogs or values in your textbook – just reference any quoted price) 

3. Cooling System for your final Problem Set.  Using the methods you learned earlier determine what cfm removal rate will be necessary to properly cool your greenhouse.  Based on this value choose the appropriate size fans from your textbook and determine the surface area of pads necessary to compliment the fan choice.  You should also include the calculations for the number of winter cooling tubes that you need.  Depending on your design you may also want to determine the number and orientation of HAF fans. You can also opt for a fog cooling system, but it may require a little digging for sizing and pricing.