"""
heat exchangers
"""
from __future__ import division
__author__ = "Thuy-An Nguyen"
__copyright__ = "Copyright 2015, Architecture and Building Systems - ETH Zurich"
__credits__ = ["Thuy-An Nguyen", "Tim Vollrath", "Jimeno A. Fonseca"]
__license__ = "MIT"
__version__ = "0.1"
__maintainer__ = "Daren Thomas"
__email__ = "cea@arch.ethz.ch"
__status__ = "Production"
# investment and maintenance costs
[docs]def calc_Cinv_HEX(Q_design, gV):
"""
Calculates the cost of a heat exchanger (based on A+W cost of oil boilers) [CHF / a]
:type Q_design : float
:param Q_design: Design Load of Boiler
:param gV: globalvar.py
:rtype InvC_return : float
:returns InvC_return: total investment Cost in [CHF]
:rtype InvCa : float
:returns InvCa: annualized investment costs in [CHF/a]
"""
if Q_design > 0:
InvC = 3000 # after A+W
if Q_design >= 50000 and Q_design <= 80000:
InvC = 3000 + 2.0/30 * (Q_design - 50000) # linear interpolation of A+W data
if Q_design >= 80000 and Q_design < 100000:
InvC = 5000.0
#print "A"
if Q_design > 100000:
InvC = 80 * Q_design / 1000.0 - 3000
#print "B"
InvCa = InvC * gV.Subst_i * (1+ gV.Subst_i) ** gV.Subst_n / ((1+gV.Subst_i) ** gV.Subst_n - 1)
else:
InvCa = 0
return InvCa